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Contact Oltaven formaldehyde catalytic filter mesh is a finished filter that decomposes formaldehyde and other volatile organic compounds (VOCs) through catalytic oxidation at room temperature. It…
FILTER MEDIA / ROLLS · SHEETS · DIE-CUT
Oltaven formaldehyde catalytic filter mesh is a finished filter that decomposes formaldehyde and other volatile organic compounds (VOCs) through catalytic oxidation at room temperature. It is designed for air purifiers, residential air conditioners and HVAC systems that require continuous formaldehyde removal without ozone or secondary pollution. The filter uses high-activity manganese dioxide (δ-MnO₂) or composite manganese oxides as the active catalyst, and is available in honeycomb activated carbon, porous ceramic or fibrous composite forms.
The performance of a catalytic filter is not determined by the catalyst alone. The way the active material is supported, shaped and assembled into the final product decides how much air can be treated, how much resistance the filter adds to the system, and how long it remains effective. At Oltaven, we manufacture finished filters, not just supply media. Our engineering team selects the catalyst loading, chooses the substrate structure (honeycomb, ceramic or fibre), and designs the pleating, framing and sealing to match each customer’s device. This integrated approach ensures that the finished filter delivers the intended formaldehyde removal efficiency (CADR ≥ 300 m³/h) and cumulative clean air delivery (CCM F4 grade) in real operating conditions.
For example, a honeycomb substrate provides a high surface area and low pressure drop, making it suitable for high-flow applications. A fibrous composite can be pleated to increase dust-holding capacity, but the pleating pattern and frame design must avoid bypass and ensure uniform airflow. The sealing method—whether gasket or adhesive—prevents unfiltered air from circumventing the catalyst. Each decision influences the final balance of efficiency, resistance and capacity.
Three main factors govern the performance of a finished catalytic filter: the catalyst itself, the substrate and forming, and the assembly and sealing.
The catalyst’s activity and the amount loaded onto the substrate determine the intrinsic reaction rate. Oltaven uses high-activity manganese dioxide (δ-MnO₂) or composite manganese oxides, which are known for their ability to oxidize formaldehyde at room temperature without the need for additional energy. The loading must be optimized: too little reduces efficiency, while too much can increase resistance and cost.
The substrate provides the surface for the catalyst and defines the airflow path. Honeycomb structures offer straight channels with low resistance and are often used in air purifiers. Porous ceramic cores provide thermal stability and can be used in harsher environments. Fibrous composite filters can be pleated to increase surface area within a compact frame, but the pleat design must balance efficiency and pressure drop. The forming process—including pleating, corrugation and cutting—affects the uniformity of the catalyst coating and the structural integrity of the filter.
The frame and sealing ensure that all air passes through the filter medium. A poorly sealed filter allows unfiltered air to bypass, reducing overall efficiency. Oltaven designs frames that match the device’s mounting and uses sealing methods that maintain a tight fit over the filter’s life. The choice of frame material (e.g., plastic, metal) and sealing compound must be compatible with the operating temperature and humidity range (5°C–50°C, 30%–90% RH).
Together, these factors determine the filter’s efficiency (CADR ≥ 300 m³/h), resistance, and capacity (CCM F4, ≥1500 mg). Oltaven’s engineering team works with customers to fine-tune these parameters for each application.
Oltaven formaldehyde catalytic filter mesh is used in:
The filter is effective in environments with temperatures from 5°C to 50°C and relative humidity from 30% to 90%. Its long service life (12–36 months depending on pollution concentration) makes it suitable for applications where maintenance intervals are long.
| Item | Detail |
|---|---|
| Core catalytic component | High-activity manganese dioxide (δ-MnO₂) / composite manganese oxides |
| Formaldehyde clean air delivery rate (CADR) | ≥ 300 m³/h (customizable based on device) |
| Cumulative clean air delivery (CCM) | F4 grade (≥ 1500 mg), long-life design |
| Recommended operating environment | Temperature: 5°C–50°C; Humidity: 30%–90% RH |
| Recommended service life | 12–36 months (depending on pollution concentration) |
| Compatible substrate forms | Honeycomb activated carbon mesh, porous ceramic core, fibrous composite filter |
Oltaven has over 20 years of experience in filter research and manufacturing, exporting to Europe, the United States, Japan and South Korea. Our OEM/ODM capabilities include customization of size, structure, filter grade, frame material, logo and packaging, and we have developed more than 1,000 filtration solutions. Our production base covers 50,000 square meters, including six cleanrooms totaling 20,000 square meters. The in-house laboratory is CNAS-accredited and can issue test reports on filtration efficiency, dust holding capacity and resistance. We are certified to IATF 16949 (2024), ISO 9001, ISO 14001 and ISO 45001, and our products comply with REACH and RoHS regulations, with compliance documents available upon request.
To discuss your formaldehyde catalytic filter requirements, please contact us through our contact page. Provide your device or vehicle model, required size or drawing, airflow or water flow, operating conditions, and estimated quantity. Our team will work with you to develop a filter that meets your performance and integration needs. We look forward to partnering with you.
Resistance depends on the substrate structure, catalyst loading, pleat design, and how the filter is sealed. A honeycomb core with straight channels has lower resistance than a pleated fibrous media, and excessive catalyst loading can increase resistance. Oltaven engineers balance these factors to meet your device's airflow requirements.
An OEM project starts with your inquiry including device model, dimensions or drawings, airflow, operating conditions, and quantity. Oltaven then designs a solution, produces samples for your validation, and upon approval, manufactures the finished filters in our cleanrooms with full quality control.
Yes, the CADR can be customized based on your device requirements. Our standard specification achieves ≥300 m³/h, but we can adjust catalyst loading and substrate to meet different efficiency targets while maintaining low resistance.
MOQ depends on the specific filter design and customization. Please contact us with your requirements for a precise MOQ quote. We support both small and large volume orders.
Sample lead time is typically discussed during the inquiry and depends on design complexity. Mass production lead time is confirmed after sample approval and order placement, considering our monthly capacity of several million pieces.
The recommended service life is 12 to 36 months, depending on pollution concentration and operating conditions. The CCM F4 grade (≥1500 mg) indicates long-life design, but actual replacement should be based on monitoring or manufacturer recommendations.